83 lines
3.1 KiB
JavaScript
83 lines
3.1 KiB
JavaScript
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// Copyright 2012 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --expose-debug-as debug
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// Get the Debug object exposed from the debug context global object.
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Debug = debug.Debug
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// Simple debug event handler which just counts the number of break points hit.
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var break_point_hit_count = 0;
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function listener(event, exec_state, event_data, data) {
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if (event == Debug.DebugEvent.Break) {
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break_point_hit_count++;
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}
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};
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// Add the debug event listener.
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Debug.setListener(listener);
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eval(
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"var inner;\n" +
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"function outer() {\n" + // Non-trivial outer closure.
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" var x = 5;\n" +
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" function a() {\n" +
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" var foo = 0, y = 7;\n" +
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" function b() {\n" +
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" var bar = 0, baz = 0, z = 11;\n" +
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" function c() {\n" +
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" return x + y + z;\n" + // Breakpoint line ( #8 )
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" }\n" +
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" inner = c;\n" +
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" return c();\n" +
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" }\n" +
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" return b();\n" +
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" }\n" +
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" return a();\n" +
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"}"
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);
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var script = Debug.findScript(outer);
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// The debugger triggers compilation of inner closures.
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assertEquals(0, Debug.scriptBreakPoints().length);
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var sbp = Debug.setScriptBreakPointById(script.id, 8);
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assertEquals(1, Debug.scriptBreakPoints().length);
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// The compiled outer closure should behave correctly.
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assertEquals(23, outer());
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assertEquals(1, break_point_hit_count);
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// The compiled inner closure should behave correctly.
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assertEquals(23, inner());
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assertEquals(2, break_point_hit_count);
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// Remove script break point.
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assertEquals(1, Debug.scriptBreakPoints().length);
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Debug.clearBreakPoint(sbp);
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assertEquals(0, Debug.scriptBreakPoints().length);
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